package cn.kgc.eduservice.listener;

import cn.kgc.eduservice.entity.EduSubject;
import cn.kgc.eduservice.entity.excel.SubjectData;
import cn.kgc.eduservice.service.EduSubjectService;
import cn.kgc.servicebase.exceptionhandler.GuliException;
import com.alibaba.excel.context.AnalysisContext;
import com.alibaba.excel.event.AnalysisEventListener;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import org.hibernate.validator.internal.constraintvalidators.bv.number.bound.AbstractMaxValidator;

/**
 * @ClassName SubjectExcelListener
 * @Description: TODO
 * @Author :郭建宾
 * @Date 2020/7/4
 * @Version V1.0
 **/
public class SubjectExcelListener extends AnalysisEventListener<SubjectData> {

    public EduSubjectService subjectService;
    public SubjectExcelListener() {}
    public SubjectExcelListener(EduSubjectService subjectService) {
        this.subjectService = subjectService;
    }

    @Override
    public void invoke(SubjectData subjectData, AnalysisContext analysisContext) {
        if (subjectData == null){
            throw new GuliException(20001,"文件数据为空");
        }

        //判断一级分类是否重复
        EduSubject existOneSubject = this.existOneSubject(subjectService,subjectData.getOneSubjectName());
        if (existOneSubject == null){
            existOneSubject = new EduSubject();
            existOneSubject.setParentId("0");
            existOneSubject.setTitle(subjectData.getOneSubjectName());
            subjectService.save(existOneSubject);
        }
        //获取一级分类id值
        String pid = existOneSubject.getId();

        //判断二级分类是否重复
        //添加二级分类
        EduSubject existTwoSubject = this.existTwoSubject(subjectService,subjectData.getTwoSubjectName(),pid);
        if (existTwoSubject == null){
            existTwoSubject = new EduSubject();
            existTwoSubject.setParentId(pid);
            existTwoSubject.setTitle(subjectData.getTwoSubjectName());
            subjectService.save(existTwoSubject);
        }
    }
    //判断一级分类不能重复添加
    private EduSubject existOneSubject(EduSubjectService subjectService, String name){
        QueryWrapper<EduSubject> wrapper = new QueryWrapper<>();
        wrapper.eq("title",name);
        wrapper.eq("parent_id","0");
        EduSubject oneSubject = subjectService.getOne(wrapper);

        return oneSubject;
    }
    //判断二级分类不能重复添加
    private EduSubject existTwoSubject(EduSubjectService subjectService, String name,String pid){
        QueryWrapper<EduSubject> wrapper = new QueryWrapper<>();
        wrapper.eq("title",name);
        wrapper.eq("parent_id",pid);
        EduSubject twoSubject = subjectService.getOne(wrapper);

        return twoSubject;
    }
    @Override
    public void doAfterAllAnalysed(AnalysisContext analysisContext) {

    }
}
